Loom-shuttle.



E. GUNNIFP M., H. cooKsoN.

LOOM SHUTTLE.

APPLICATION I'ILED PB..-23,' 1908.

Patented Dec. 8, 1908.

EDWARD CUNNIFF' AND JOSEPH H. COOKSON,

OF NEW BEDFORD, MASSACHUSETTS,

ASSIGNORS TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, n CORFORA TlONOF MAlNE.

LOOM-SHUTTLE Specification o Letters Patent.

Patented. Dec. e, isos.

Application filed April 23, 1908. SerialNo. 425,724;

To all 'whom it may concern.'

Be it known that we, EDWARD Cuunjirr and JosnrH H. CooKsoN, citizens ofthe United States, and residents of New Bed ford, county of Bristol,State of Massachusetts, have invented an Improvement m Loom-Shuttles, ofwhich the following description,'in connection with the accompanyingdrawing, is a specification, like letters on the drawing representinglike parts.

This' invention relates to shuttles of the type used in looms wherein abobbin is inserted automatically in the working shuttle while the loomis in motion, and it has for its particular object the'production. ofimproved vand novel means for guiding the bobbin into proper positionwhen inserted as at Li, Fig. 3, between its ends and in the shuttle.-

The various novel features of our invention will be fully described inthe subjoined specification and particularly pointed out in thefollowing claims.

Figure 1 is a top plan view of the bobbinholding end of a loom-shuttlewith one embodiment of our invention applied thereto; Fig. 2 is apartial longitudinal section on the line Q-fZ, Fig. 1; Fig. 3 ishorizontal sectional view on the line 3-3, Fig. 2.

The shuttle-body 1 has a bobbin-receiving opening 2, as usual inshuttles of vthis character, and at one end of the opening the shuttlewl'ood is vertically recessed from the top downward, as at 3, for apurpose to be described.

Inour invention we form thev holding jaws of a relatively thin strip ofspringmetal, folded or bent upon itself between its ends and thenout-turned to form the jaws, instead of having the jaws milled out of aheavy bar, as heretofore, as we can -makc the jaws much more easily andat less cost, and in addition' we gain very considerably .in elasticityof the jaws.

The spring metal strip, of suitable width and thickness, is bent orfolded upon itself stantially in parallelism,4 constituting the jawbases, and then the strip is bent outward at 5, and again bent nearlyinto parallelism,

lorming the oppOStelaws 6a which are' grooved vertically on their innerfaces at 7 to engage the usual rings on the bobbin head.

As shown best in Fig. 3 the folded portion subl x l l l constituting thejaw bases is inserted in the recess 3 and a spreader 8, which ispreferably a block of metal of suitable thickness, 'is pushed in'betweenthe parallel portions of the jaw bases, separating and holding themiirmly seated in the recess in close contact with its side walls.

The jaw bases and the spreader are apertured to receive the retainingbolt 9 extended transversely through the shuttle body, the bolt-holebeing counterbored as usual to receive at one end the head of the boltand at the other end the nut 10 into which the bolt is screwed. y

As shown clearly in Fig. 3 the shuttlewood is cut away adjacent the jawsat 11 to permit the separation thereof when the bobbin is inserted, thisbeing usual practice.

The inclined guide 12 located between the jaws is transversely concavedin our invention, to insure a .more comple-te control and positiveguidance ofthe bobbin-head of an incoming bobbin and cause the same tobe in proper alinement with the longitudinal axis `of the shuttle.

The guide is made of resilient metal7 and at its lower end it is bentback at 13, Fig. 2, to extend between the bottom of the rece-ss 3 andthe lower edges of the jaw bases and the spreader 8,'the side walls ofthe recess being grooved in usual manner to receive the extension.

t its upper end the guide is bent down at 1,4 and then rearwardlyextended at 15 upon the tops of the spreader and the jaw bases, and thesides of therecess are undercut or grooved at 3X, see dotted lines Fig.1, to receive the edges of the extension 15.

The extremity of the extension is bent to form a downturned transverselip 16 which enters a notch 17, Fig. 2, in the top of the spreader 8,similar notches being formed in the tops of the jaw bases, theengagement of the lip with the notches holding the guide 12 fromdisplacement in the direction of the length of the shuttle.

By making the spreader of the proper thickness the jaw bases areseparated just. the requisite distance to i t tightly within the wallsof the recess 3, the bend et abutting against the rear end of thelatter, so thata iirm seat is attained for the jaws, the bolt 9preventing displacement during the operation of the shuttle inthe loom.

By making the jaws from a strip of spring metal itwill be obvious thatthe cost is reduced to a minimum and the formation of the notches 7 islsimplified, the bending or folding of the strip bringing the bases ofYthe jaws into parallelism in readiness to be inserted in the shuttle. v

Should the shuttle wood shrinksutliciently tol` enlarge the recess 3sutliciently to loosen the jaws this can be easily remedied bysubstituting a slightly thicker spreader, thereby saving the jaws andobviating' fitting the shuttle with a new pair.

Having fully described our invention, what we claim as new and desire tosecure n by Letters Patent is z* l. A loom-shuttle having abobbin-receiving opening, resilient holding-jaws mounted in theshuttle-body at one end of the opening, to engage and hold the head of abobbin, and a transversely-concave, inclined guide between the jaws.

- 2. A loom-shuttle having a bobbin-receiving opening, opposed jawsmounted in the shuttlebody at one end of said opening, to engage andhold the head of a bobbin, an inclined, transversely-conca@ guide forthe bobbin'head, located between the jaws, and extensions at the upperand lower ends of the guide extended rearwardly and ixedly held in theshuttle-body.

In testimony whereof, we have-signed our names to this specification,`in the presence of two subscribing witnesses.

EDWARD CUNlIIFli".4 JOSEPH H. COOKSON.

` Witnesses:

FRANK T. COOKE, ROBERT COOKE.

